[Elecraft] sidetone pin-pricks

Fri Apr 2 08:50:05 2004

At 14:39 02/04/2004, Indy wrote:

>I have "pin-pricks" in my sidetone when the QSK changes over.  this began 
>with the change from the KAF2 to the DSP.  Lyle has a mod he suggests 
>which slows the rate of the QSK way down.

No it Shouldn't slow the QSK 'Way down' since the little time it adds at 
the key closure comes from the timing at the keyup side  of things.

I haven't tried Wayne's version but I did find that the keyclick mod made 
QSK a hair slower :-( and I can no longer hear between the dots at 25 wpm 
but I can at 22 Wpm

>  Wayne suggests this:
>
> >"Another way to achieve the same effect is to insert a largish
> > resistor (try 100 k) in series with pin 17 on the MCU. This would add
> > only 150 microseconds to the /mute fall and rise times."
>
>Has anyone tried Wayne's suggestion?  I am not anxious to cut a trace 
>without knowing if it works!
>
>Thanks,
>
>
>
>
>
>--- StripMime Report -- processed MIME parts ---
>multipart/alternative
>   text/plain (text body -- kept)
>   text/html
>The reason this message is shown is because the post was in HTML
>or had an attachment.  Attachments are not allowed.  To learn how
>to post in Plain-Text go to: http://www.expita.com/nomime.html  ---
>_______________________________________________
>Elecraft mailing list: [email protected]
>You must be subscribed to post to the list.
>To subscribe or unsubscribe see: 
>http://mailman.qth.net/mailman/listinfo/elecraft
>Elecraft Web Page: http://www.elecraft.com
>Also see: http://www.elecraft.com/elecraft_list_guidelines.htm

-- 
Brendan Minish
   [email protected]
PGP key available from key servers  wwwkeys.pgp.net